Dr. Lukejohn Day
- Gender: Male
- Experience: 17 years
- Graduated from: Stanford University School Of Medicine
- Graduation year: 2004
- Sole propriator: Yes
- NPI: 1669623773
Dr. Lukejohn Day M.D.
Gastroenterologist
He is located at 505 Parnassus Avenue in San Francisco, CA 94143. Can help patients with the following: Blood in Stool, Celiac Disease, Cirrhosis, Hyponatremia, Irritable Bowel Syndrome (IBS), Urethritis. His National Provider Identifier (NPI) number is 1669623773. Appointment can be made via the phone number (415) 377-2176. He is affiliated with 1 practices and 1 hospitals.
Conditions treated
Dr. Lukejohn Welch Day, being an gastroenterologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Lukejohn Day.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Ascites
- Asthma
- Atherosclerosis
- Autoimmune Hepatitis
- Bad Breath
- Barrett's Esophagus
- Bladder Control
- Bleeding Varices
- Blood in Stool
- Botulism
- Cancer
- Carcinoid Tumor
- Celiac Disease
- Chest Pain
- Childhood Obesity
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Cirrhosis
- Clostridium Difficile Colitis
- Colitis
- Colonoscopy
- Common Cold
- Constipation
- Crohn's Disease
- Cystitis
- Diarrhea
- Diverticulosis
- Edema
- Eosinophilic Esophagitis
- Esophagitis
- Fatty Liver Disease
- Feeding and Swallowing
- Fever
- Food Allergies
- Gallbladder Pain
- Gastric Bypass Surgery
- Gastritis
- Gastroesophageal Reflux Disease (GERD)
- Gastroparesis
- General Care
- Headache
- Heart Disease
- Heartburn
- Helicobacter Pylori Infection
- Hemorrhoids
- Hepatitis A (HAV)
- Hepatitis B (HBV)
- Hepatitis C (HCV)
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Indigestion
- Inflammatory Bowel Disease (IBD)
- Influenza
- Inguinal Hernia
- Internal Bleeding
- Intussusception
- Irritable Bowel Syndrome (IBS)
- Lactose Intolerance
- Leaky Gut Syndrome
- Liver Disease
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Pancreas Divisum
- Pancreatic Cancer
- Pancreatic Cysts
- Pancreatitis
- Peptic Ulcer
- Portal Hypertension
- Prescription Refill
- Primary Biliary Cirrhosis (PBC)
- Primary Sclerosing Cholangitis (PSC)
- Stomach Cancer
- Swallowing Disorders
- Ulcerative Colitis
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. Lukejohn Day
Medicare Enrollment
Dr. Lukejohn Day is enrolled to bill Medicare as a Practitioner - Gastroenterology (also registered under: Practitioner - Internal Medicine) .
Bills through: Regents Of The University Of California
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Studies
STANFORD UNIVERSITY SCHOOL OF MEDICINE
Graduated in 2004Additional Specialities
- Internist
Looking for more Gastroenterologists?
Out of the 23 gastroenterologists in this region, here are 10 randomly selected ones for you to explore.
- Gender: Male
- Address: Third Floor 400 Parnassus Ave. San Francisco, 94143, CA
- Gender: Male
- Address: Third Floor 400 Parnassus Ave. San Francisco, 94143, CA
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- Address: 1100 Van Ness Avenue San Francisco, 94109, CA
- Gender: Female
- Address: 350 Parnassus Ave, 300 San Francisco, 94117, CA
- Gender: Male
- Address: 1000 Houghton Avenue Saginaw, 48602, MI
- Gender: Male
- Address: 505 Parnassus Avenue San Francisco, 94143, CA
- Gender: Female
- Address: Third Floor 400 Parnassus Ave. San Francisco, 94143, CA
- Gender: Male
- Address: Room S-357 Box 0538 513 Parnassus Avenue San Francisco, 94143, CA
- Gender: Male
- Address: Third Floor 400 Parnassus Ave. San Francisco, 94143, CA
- Gender: Male
- Address: Suite 410 350 Parnassus Avenue San Francisco, 94117, CA
Questions & Answers
Has Dr. Lukejohn Welch Day affiliation with hospitals?
Dr. Lukejohn Welch Day is affiliated with SAN FRANCISCO GENERAL HOSPITAL.
What conditions does Dr. Lukejohn Welch Day treat?
Dr. Lukejohn Welch Day provides treatment for Blood in Stool, Celiac Disease, Cirrhosis, Hyponatremia, Irritable Bowel Syndrome (IBS), Urethritis. For the full list see this list.
Where can you meet with Dr. Lukejohn Welch Day?
Dr. Lukejohn Welch Day's office is located at 505 Parnassus Avenue in San Francisco, CA 94143.
Does Dr. Lukejohn Welch Day have affiliation with practices?
Dr. Lukejohn Welch Day is affiliated with SFGH Medical Group Orthopedic Appliance Facility.